In the week to 27 April, no additional countries reported
mosquito-borne Zika virus transmission. Canada is the latest country to
report person-to-person transmission.

Microcephaly and other fetal malformations potentially associated
with Zika virus infection or suggestive of congenital infection have
been reported in six countries or territories (Table 3). Two cases, each
linked to a stay in Brazil, were detected in Slovenia and the United
States of America. One additional case, linked to a brief stay in
Mexico, Guatemala and Belize, was detected in a pregnant woman in the
United States of America.

In the context of Zika virus circulation, 13 countries and
territories worldwide have reported an increased incidence of
Guillain-Barré syndrome (GBS) and/or laboratory confirmation of a Zika
virus infection among GBS cases.

Based on research to date, there is scientific consensus that Zika virus is a cause of microcephaly and GBS.

The global prevention and control strategy launched by the World
Health Organization as a Strategic Response Framework encompasses
surveillance, response activities and research. Key interventions are
being undertaken jointly by WHO and international, regional and national
partners in response to this public health emergency.

WHO has developed new advice and information on diverse topics in
the context of Zika virus. WHO’s latest information materials, news
and resources to support risk communication, and community engagement
are available online.